POL — Triticum turgidum subsp. durum

Summary

TRITD4BV1G203890 (POL, TtPOL) on durum wheat chromosome 4B encodes a protein-serine/threonine phosphatase of the PP2C/PPM-type family. It is associated with phospholipid binding, metal binding, and protein serine/threonine phosphatase activity (EC 3.1.3.16). The gene has been connected to meristem cell maintenance, meristem structural organization, phyllome development, polar cell growth, regulation of intracellular signaling and DNA-templated transcription, defense response, and signal transduction. It localizes to the nucleus, mitochondria, membrane, and plasmalemma. Phenotypic associations include seedling lethality, meristem termination with reduced floral organs, root stem cell maintenance, leaf development, stem cell identity, stem cell specification, embryo development, weak suppression of clv1-1 carpel number phenotype, suppression of shoot meristem defects and carpel number in clv1-1, short pedicels and erecta phenotype with compact inflorescence, stem cell maintenance, peroxisomal function, and vascular development. Studies of related genes in other species link the family to grain size, plant height, drought tolerance, tassel branch number, and leaf angle.